ABCD is a parallelogram. ∠ABD = 65°. Find ∠DAB.
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Worked Solution
Step 1: In a parallelogram, opposite sides are parallel. So AD is parallel to BC.
Step 2: The adjacent angles in a parallelogram between parallel lines add up to 180°.
Step 3: ∠ABC + ∠DAB = 180°.
Step 4: ∠ABC = 180° - 65° = 115°.
Answer: 115°
Correct answer: 115°
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